Electrical Control TRIZ Cases

This gasoline engine control method stages fuel cuts and exhaust heating to complete GPF regeneration without sustained overheating.

Mapped pull-in durations apply high current only when needed, then lower solenoid current to maintain reliable injector actuation.

A one-way cooling line draws intake air into the sensor cavity, reducing heat and pressure without major engine modifications.

This case uses a movable valve and overflow buffer to expel fuel from the conduit and hasten dual-fuel engine switchover.

An engine control unit varies DEF dosing and engine parameters to calibrate NOx sensors across dual SCR systems during operation.

This case adjusts engine power from catalytic converter active volume, enabling earlier high power while meeting emissions thresholds.

Retarded second-stage injection helps operate the turbocharger while preserving combustion stability and load application performance.

The control checks secondary-fuel injection before DGB disablement, selecting pilot or full diesel shots for each cylinder.

Engine control maps injection and ignition timing limits to advance ignition for fuel efficiency while preserving stable combustion.

Frequency-domain analysis of acoustic signals detects engine wear, blockages, and process variations for real-time control.

Pressure-drop analysis during engine overrun detects fuel leakage without dedicated sensors.

Monitoring safety-valve discharge helps predict changing LNG composition and adjust combustion parameters before knock risks arise.

A shared motor and gear train drives both valves, while direct bypass position sensing improves opening accuracy.

Sensors identify excavation stages so the controller lowers the engine output limit, matching power to load and improving fuel consumption.

A stepped rotor and rounded reluctor tip control magnetic flux, balancing pulse crests and preventing ECU signal misinterpretation.

Combine swing and inclination sensing in one assembly for cleaner ECU data.

A heat exchange model uses pressure, speed, and fluid temperature to adjust ignition timing during transient engine operation.

A discrimination unit routes genuine faults to control and false positives to feedback, reducing complexity and processing effort.

This case adjusts actuator position from force feedback to preserve wastegate sealing as turbocharger housing expands.

A movable seal switches between canister, pump, and atmospheric paths to support flexible, accurate evaporative leak detection.

EGR and variable-nozzle turbocharging balance thermal promotion, torque, and fuel efficiency.

The control device combines charge air pressure drops with correlated operating parameters to distinguish plausible compressor surge events.

Periodic non-injection measurements update calibration data, improving low-fuel pulse accuracy as injector performance changes.

Power-based control splits methanol injection between the cylinder and intake pipeline to reduce vaporization energy and wall wetting.

Monitor chopped hysteresis pulses in a solenoid fuel injector to time braking and reduce needle impact, noise, and wear.

A supervisory controller evaluates engine response and adjusts fuel and air references to balance NOx emissions with performance over time.

A battery-powered ignition coil and digital module adjust timing to improve combustion and startup reliability in cold climates.

Angular velocity and acceleration thresholds trigger engine deceleration to suppress skidding while preserving turning speed.